Php Regex排除已经匹配的某种模式

Question

Hi there I need a hand with the pattern below:

(?<=\")([0-9\.\/])+(?=\")

Content

<ul>
<li><a href="../">..</a></li>
<li><a href="1.0/">1.0/</a></li>
<li><a href="1.1/">1.1/</a></li>
<li><a href="1.23/">1.23/</a></li>
</ul>

The above pattern selects ../, 1.0/, 1.1/, 1.23/

I don't want to match ../ but any permutation of number,period and / should match.

Give me a hand please.

Thanks as always.

Answer 1

You can put a negative lookahead assertion in your existing regex:

(?<=\")(?!\.\.)([0-9\.\/])+(?=\")
       ^^^^^^^^

See it

Answer 2

我通过添加负前瞻（ （？！\\。） ）来修改你的正则表达式。

(?<=\")(?!\.)([0-9\.\/])+(?=\")